L. A. MAXFIELD
US Citizen
Phone 512-***-****
****@*************.***
PROFILE
I have over 20 years of comprehensive experience working with customers in an advisory capacity, as a manager, and in a hands-on role in defining a roadmap and strategy around legacy systems transformation initiatives, like re-writing, migration, re-hosting, and service enablement. My special area of proficiency is establishing, developing, monitoring and managing technical infrastructures for large, medium and small sized organizations. I have also been involved in Sarbanes/Oxley audits for several organizations. I also have experience developing & maintaining staffing plans, developing & maintaining project plans, managing budgets, and coordinating project resources. I am also currently working on CISSP Certification.
TECHNICAL EXPERIENCE
Project Management:
Project Planning
System Management
Project Control
Client/Server
JAD Facilitation
Business Procedures Analysis
System Architecture
Technical Writing
Data Modeling
Training
Process Modeling
Business Intelligence
Business Area Analysis
Management Consulting
Testing and Implementation
Data Warehouse
Application Experience:
General Ledger
Insurance
Accounts Payable
Welfare
Genetic Engineering
Inventory Control
Court Systems
Payroll/Personnel
Medical Billing
Data Gathering Networks
Manufacturing
Estimating
Oil and Gas
Inventory
Hardware Experience:
IBM1401-9672
Univac
Burroughs
AS400
SUN
HP9000
UNISYS
DEC
Honeywell
zOS/390
Software Experience:
Oracle
IEF
Stored Procedures
Assembler
JCL
VISUAL C++
Fortran
TSO
RACF
IMS
ISPF/PDF
DTS
CICS
SYBASE
Triggers
MDX
OS2
SAP
SQL
SQL/SERVER
AIX
DB2
PEOPLESOFT
HP/UX
COBOL
UNIX
DEC/OS
PowerBuilder
TCP/IP
JAVA
IEW
CA tools
.Net
ADW
Windows
Web logic
Citrix Metaframe
Shell Scripting
MYSQL
Linux
Erwin
BMC Tools
MySQL
Tuxedo
Agile Development Methodology
Hadoop
De-duplication
Education Associates Degree in Business Administration from Area XI Community College, Des Moines, Iowa 1983
RELEVANT EXPERIENCE
US Navy – Reston, VA
[05/18 To Present]
I was working as a Data Architect Planner and database administrator with US Navy.
Monitored servers and databases to ensure availability and performance
Applied database upgrades and patches
Installed, configured database software across multiple environments
Designed back-up recovery and disaster recover strategies
Database Security design, development and management and user provisioning
Installed MongoDB and began converting several legacy databases to Hadoop.
Support Architecting new MongoDB databases.
Create and maintain database standards and procedures
Jack Henry Associates – Houston, TX
[01/18 To 5/18]
I was working as a Data Architect Planner and database administrator with Jack Henry Associates a supplier to many different financial, medical, insurance and banking companies.
Upgraded DB2 from 10.1 to 11.1 on Z/OS.
Monitored servers and databases to ensure availability and performance
Applied database upgrades and patches
Upgraded MS/SQL server from 2012 to 2016.
Installed, configured database software across multiple environments
Designed back-up recovery and disaster recover strategies
Database Security design, development and management
Installed MongoDB and began converting several legacy databases to Hadoop.
Support high-availability and disaster recovery solutions
Create and maintain database standards and procedures
Washington Gas – Washington DC
[06/17 to 12/17]
My assignment was to work as a Database Architect on a contract for Washington Gas that was to migrate multiple legacy databases to MongoDB for reporting.
Analyze existing documentation and direct project teams in the extraction and mapping then loading of the data.
Met regularly with both technical teams as well as management on technical issues and project progress.
Used Shell’s Project Delivery Framework methodology (PDF) for the delivery the overall project.
Completed the project on schedule and ended up saving Shell several thousand previously estimated hours.
FISERV – Houston, TX
[1/17 to 06/17]
I am working as a Database Analyst with Fiserv a supplier to many different financial, medical, insurance and banking companies.
Built business intelligence database for reporting sales and financial information using MS SQL/server 2016.
Database Security design, development and management and user provisioning
Support high-availability and disaster recovery solutions
The Clearing House – Winston-Salem, NC
[03/16 to 01/17]
I am working as a Data Architect Planner and database administrator with The Clearing House on multiple projects to support major legacy system used in the transfer of money and securities between all major banks around the world. The systems transfer on average two trillion dollars a day between banks. The systems use Mainframe, AIX with both DB2 with Pure scale and SQL databases. I performed reviews of the database security. I was also involved in Extracting data from the legacy DB2 systems on mainframe systems to, MongoDB systems that will be used for data warehousing and reporting. And building the future systems of Secure Token Exchange (STE} and Real Time Payments (RTP). Which will both have data warehouse extensions and reporting. All of STE and RTP will run on DB2 z/OS, DB2 10.5 Linux, 11.1 DB2 AIX and MS/SQL 2014. Also worked with Tivoli used for monitoring, and storage management. Worked on MS/SQL 2012 & 2014 in support of legacy systems.
IBM – Los Angeles, CA
[12/15 to 3/26]
I am working as a Data Architect Planner and database administrator with IBM on a project to support medical devices that report into a computer system for a major supplier in MINNESOTA.
Installed DB2 10.5 with Pure scale on a Linux platform.
Installed DB2 10.5 on a zOS platform
Installed Infosphere CDC in Linux and zOS
Created all infrastructure to support the applications including replication.
Monitored servers and databases to ensure availability and performance
Applied database upgrades and patches
Installed, configured database software across five environments
Designed back-up recovery and disaster recover strategies
Database Security design, development and management.
Support high-availability and disaster recovery solutions
Create and maintain database standards and procedures
FISERV – Data Architect/Database Administrator Austin, TX
[12/14 to 11/15]
I was working as a Data Architect Planner and database administrator with Fiserv a supplier to many different financial, medical, insurance and banking companies.
Upgraded SQL Server to 2014.
Monitored servers and databases to ensure availability and performance
Applied database upgrades and patches
Applied database upgrades and patches
Installed, configured database software across multiple environments
Designed back-up recovery and disaster recover strategies
Installed, configured database software across one hundred sixty environments
Database Security design, development and management and user provisioning
Support high-availability and disaster recovery solutions
Create and maintain database standards and procedures
TMK – Database Administrator Houston, TX
[5/13 to 10/14
I am working as a Database Architect Planner with TMK a supplier of pipes and fittings to the Oil Industry. I installed DB2 V10.5 with Purescale on a LINUX Red Hat operating system for a Business Intelligence system using IBM Cognos. Supported legacy databases DB2 zOS 10.1 and on MS SQL Server 2014 R2.
Upgraded DB2 V10.5 set of database with fix packs
Upgraded SQL Server and Cognos
Upgraded MySQL databases
Monitored servers and databases to ensure availability and performance
Converted MS SQL Server BI database and migrated it to DB2
Migrate legacy database zOS DB2 from east coast data center to Houston in a MongoDB.
Migrated IMS legacy data MongoDB
Upgraded IMS to Version 10
Applied database upgrades and patches
Installed, configured database software across six environments
Database Security design, development and management.
Support high-availability and disaster recovery solutions
Worked with Tivoli used for monitoring, storage management, and workload management
Create and maintain database standards and procedures
Performed on-call DBA support rotation and provide off hours support
Maxfield Associates, Inc. – Consultant
Lincoln, NE
[9/12 to 5/13]
My current assignment is working as a Database Architect Planner on a contract for the State of Nebraska working on planning the upgrade to DB2 Version 10. Working with the System DBA’s and data Architects to developing new standards for backup and recovery develop a plan for the upgrade of the entire state’s systems.
Reviewed current MongoDB installation and made recommendation on changes needed.
Developing new standards for backup and recovery.
Monitored MongoDB databases
Reviewed database security.
Worked in supporting several legacy IMS systems.
Regularly met with both technical teams as well as management on technical issues and project progress
Phoenix, AZ
[4/12 to 9/12]
My assignment was working as a Database Architect on a contract for American Express working on development of new technologies. Working in conjunction with EMC Corporation is setting standards for Data Domain to move current Tier 1 and Tier 3 storage backups to a lower cost alternative Tier 5 storage. Also, developing standards for Near Line storage alternative for Database tables archive use in a database partitioned table environment.
Installed the AIX UDB DB2 V9.75 set of databases.
Installed the AIX Oracle 11G set of databases.
Installed the Windows SQL Server 2005 set of databases.
Installed the Windows SQL Server 2008 set of databases.
Migrated MySQL databases to DB2.
Ran test scripts in all environments to test de-duplication of backup data.
Developed standards, run scripts, and run books for all environments for implementation in the large number of production environments.
Developing standards for products to help in deduping data in databases.
Began establishing of the Apache Hadoop MapReduce and HDFS subprojects
Regularly met with both technical teams as well as management on technical issues and project progress.
New Mexico Department of Workforce Solutions - Albuquerque, NM
[6/10 to 4/12]
My assignment was working as a Project Manager on a contract for the State of New Mexico Department of Workforce Solutions working on supporting current operations and migrating UDB DB2 V9 on zOS/390 MVS machine databases to a SQL/Server 2008 database and to an Oracle 11G database.
Supporting the AIX UDB DB2 V9.5 data warehouse set of databases.
Upgrade the DB2 V7 environment to DB2 V9 and migrated the DB2 V7 Database to DB2 V9.
Support existing operations support staff and assist project teams in the creation of the SQL/Server and Oracle databases.
Data modeling of legacy data with Erwin and Agile.
Monitored legacy MySQL databases for performance
Performed database security.
Data mapping from legacy system to new system developed by Deloitte
Support the extraction and loading of the data in the new data structures.
Regularly met with both technical teams as well as management on technical issues and project progress.
(Company Name Confidential) - Houston, TX
[2/10 to 6/10]
My assignment was working as a Business Analyst/DBA on a contract for Insurance company (Company Name Confidential) working on migrating PeopleSoft HRCM 9.1 data from DB2 v8.2 on zOS to AIX UDB DB2 V9.7 database.
Met regularly with both technical teams as well as management on technical issues and project progress.
Helped implement two factor authentications for Citrix environment.
Developed stored procedures and triggers.
Shell Oil - Houston, TX
[11/09 to 2/10]
My assignment was to work as a Business Analyst /Project Manager on a contract for Shell Oil that was to migrate archived business data from Mark IV tape system to an Oracle 11G databases. I came in during the sixth month of a project that was supposed to have only taken two months to complete.
Analyze existing documentation and direct project teams in the extraction and mapping then loading of the data.
Validating destruction of old media at the end of the project.
Met regularly with both technical teams as well as management on technical issues and project progress.
Used Shell’s Project Delivery Framework methodology (PDF) for the delivery the overall project.
Reverse engineer assembler code to build stored procedure for handling differences in ASCII and EBCDIC.
Completed the project within six weeks and ended up saving Shell Oil an annual fee of $12,000,000 on hardware lease.
State of Texas Attorney General - Austin, TX
[06/09 to 12/09]
I was working as a Team Lead/DBA on a contract State of Texas Attorney General Office.
Coordinated the installation of design, development, monitoring and tracking tools to be used in a proof of concept pilot project being led by and outside consulting firm.
Worked on upgrade to their Child Support System databases from the zOS390 platform to an AIX platform using UDB DB2 v9.7.
Installed the UDB DB2 V9.7 and built all databases and established backup and recovery for each.
Migrated MySQL databases to DB2.
Worked closely with both technical teams and with management personnel to be able to maintain close rapport between both groups.
Reviewed Java SQL code and queries for efficient use of limited resources.
Reviewed database security.
Set up interfaces with several Federal Government databases that were, established on Oracle 11G and SQL/Server 5 & 8 databases.
This was a 3TB environment.
Created 45 databases necessary for all the tools to function in the proof of concept environment and created backup and recovery jobs for each and developed a disaster recovery plan.
State of Texas, in their Department of Public Safety.- Austin, TX
[08/08 to 5/09]
My assignment was to work as a Business Data Analyst for State of Texas, in their Department of Public Safety.
Led a team in the performance tuning effort and rebuilding the Drivers License system databases from the zOS390 platform on to an AIX platform. .
Reviewed and performance tested all the Java SQL code used to query and access the data.
Used Erwin data modeling tool and mapping of legacy data.
Coordinated the efforts of and outside consulting firm with that of the internal Public Safety staff.
Brussels, Belgium
[06/08 to 08/08]
I worked as a Project Lead/DBA for a bank in Brussels, Belgium helping to direct a team in performance tuning of application level SQL and to rebuild consumer and PeopleSoft V8.5 databases from the zOS390 platform in Brussels on to an AIX platform in the United States.
Coordinated the efforts of the Belgium staff and the United States staff in the building of the databases and migration of data.
Used Agile Development Tools for mapping and data modeling of data...
Managed the installation of fix packs and for both UDB DB2 V9.5 and AIX.
Managed a team in establishment of backup, recovery, and reorg procedures and jobs for the 22TB of data.
Helped implement two factor authentications for remote Citrix users.
installed MYSQL databases and monitored for performance.
Directed the set up replication for several environments.
Worked with security administration in establishing LBAC for systems.
Involved in the reengineering of stored procedures from mainframe to UNIX platforms.
Ernest Gallo Clinic and Research Center - San Francisco, CA
[07/07 to 08/08]
My assignment was to work as a Business Analyst for Ernest Gallo Clinic and Research Center. I was initially brought in to evaluate issues they were having with databases being used for research. They were working on UDB DB2 V8.1 on Linux providing support for research staff databases.
Worked with management and reestablished licenses for their database and Operating Systems which had been allowed to expire.
Responsibilities included managing the application of fix packs to DB2 and to Linux.
Managed the performance tuning of the DB2 databases, establishing backup and recovery procedures that utilized TMS Tape Management Software and supporting application development staff and researchers doing complex queries on the 16TB warehouse databases.
Tools used were Quest and DB Artisan.
Upgraded EGCRC from DB2 UDB V8 to DB2 UDB V9.5 ESE.
Rewrote many of their command line and KSH and Java procedures for better performance.
Installed and set up a human genome research database developed on MySQL supplied by a European University.
Houston, TX
[03/08 to 6/08]
I was working as a Management Advisor, doing an evaluation of a DBA team for a company in the Oil Industry in Houston, TX.
Made recommendations in how to grow their organizations technical staff and reviewed current staff.
Advised on re-platforming their major databases.
Began a re-platform effort from DB2 7.1 to Oracle 11G after the study was completed.
Los Angeles, CA
[1/07 to 6/07]
I worked as a DBA for Stater Brothers Markets.
Worked on PeopleSoft 8.8 Human Resources with PeopleTools 8.4.5 while also supporting PeopleSoft Financials.
The PeopleSoft systems are installed on an OS390 system with DB2 as the database.
Backed up, loaded and restored databases.
Performed data mapping for changes to legacy data to major coding changes to PeopleSoft packages.
Performed performance tuning of SQL and System level tuning.
Supported other systems on UNIX platforms utilizing Oracle 10G for the databases.
Used Oracle Data Guard for disaster recovery.
Performed performance testing on Java SQL and C++ SQL code.
The Home Depot – Chief DBA
Austin, TX
[2/05 to 1/07]
I worked as a Team Lead/DBA for The Home Depot.
Worked on PeopleSoft 8.8 Human Resources with PeopleTools 8.4.5.
Worked on the SAP Basis Team supporting the installation of SAP Human Resources and Business Intelligence data warehouse.
The PeopleSoft and SAP systems are installed on a z/OS390 system with DB2 as the database.
Responsibilities included backup, load and restores of databases, performance tuning of SQL, System level tuning, cloning databases, and daily support of developer and end users.
Performed data mapping for changes to legacy data to major coding changes to PeopleSoft packages.
Installed DB2 V9.5 beta on Linux on the z/OS390 for a legacy system of a company that the Home Depot had purchased. I also supported a data warehouse using Oracle 9I and supported Developers writing C++ and Java code.
Maxfield Associates, Inc. – Consultant 1/01 to 02/05
Atlanta, GA
[8/03 to 2/05]
My assignment was to work as a DB2 DBA during the upgrade/implementation of PeopleSoft 8.8 Human Resources and Payroll with PeopleTools 8.4.5 for the Home Depot. The system was installed on a zOS390 system with DB2 as the database. I also worked as on call support analyst for the SAP financial system and Business Intelligence data warehouse. I performed the following functions:
Managed and maintained an 18 instance PeopleSoft database environment.
Provide environment control and security administration on DB2.
Worked implementing the upgrade using PeopleSoft Upgrade Assistant.
Provided backup, recovery and loading of DB2 databases.
Performed DB2 performance and scalability testing on both zOS390 and AIX.
Performed tuning of Application Engine routines.
Facilitated meetings with the project team to discuss progress and issues.
Executed and manages all technical upgrade/implementation tasks.
Logged all technical upgrade steps.
Resolved technical issues between the Database Administrators (DBAs) and the Systems Programmers.
Created and oversaw all necessary technical project plans to ensure completion of the upgrade/implementation.
Performed data mapping for changes to legacy data to major coding changes to PeopleSoft packages.
Reported completed tasks, issues, and risks.
Loa Angeles, CA
[05/03 to 08/03]
I worked as a DB2/DBA and PeopleSoft Installer/Upgrader Manager during the install/upgrade of PeopleSoft 8.8 Human Resources, Portal, CRM, and EPM for a large financial company in California. I managed a team of ten consultants that performed the following functions:
Created and installed a PeopleSoft Demo and Sys database with associated web servers, app servers and process schedulers and seven additional environments.
Configured the Application Server Domain, Web Server and Process Scheduler
Completed the install Verification Test
Provide environment control and security administration on DB2.
Provided backup, recovery and loading of DB2 databases.
Performed scalability testing of DB2.
Assisted in building a data warehouse.
Prepared the Project Plan and managed the entire install/upgrade effort from beginning to end
Monitored progress on the install/upgrade project plan and tasks
Facilitated meetings with the project team to discuss progress and issues
Executed and manages all technical install/upgrade tasks
Logged all technical upgrade steps
Created and oversaw all necessary technical checklists to ensure completion of the install/upgrade
Reported completed tasks, issues, and risks
Atlanta, GA
[07/02 to 05/03]
I worked as a Managing DBA and PeopleSoft Installer/Manager during the install of PeopleSoft 8.8 Human Resources for The Home Depot. The system was installed on a zOS390 with DB2 as the database. I performed the following functions:
Created and installed a PeopleSoft Demo and Sys database with associated web servers, app servers and process schedulers and seven additional environments.
Configured the Application Server Domain, Web Server and Process Scheduler.
Completed the install Verification Test.
Provide environment control and security administration.
Provided backup, recovery and loading of databases.
Performed DB2 performance and scalability testing.
Prepared the Project Plan and managed the entire install effort from beginning to end.
Monitored progress on the install project plan and tasks.
Facilitated meetings with the project team to discuss progress and issues.
Executed and manages all technical install tasks.
Logged all technical upgrade steps.
Resolved technical issues as the Database Administrator (DBA) and with the Systems Programmers.
Created and oversaw all necessary technical checklists to ensure completion of the install.
Performed data mapping for changes to legacy data to major coding changes to PeopleSoft packages.
Reported completed tasks, issues, and risks.
My assignment also involved developing & maintaining staffing plans, developed & maintained project plans, managed budgets, and coordinated project resources.
Los Angeles, CA
[06/01 to 06/02]
My assignment was to work as a Managing DBA and PeopleSoft Installer/Manager during the upgrade of PeopleSoft 8.3 Human Resources for a major manufacturing company in California. The system was installed on an HP/UX system with Oracle as the database. I performed the following functions:
Created and installed a PeopleSoft Demo and Sys database with associated web servers, app servers and process schedulers and 8 additional environments.
Completed the install Verification Test
Provide environment control and security administration.
Provided backup and recovery database support.
Performed Oracle performance and scalability testing.
Prepared the Project Plan and managed the entire upgrade effort from beginning to end
Monitored progress on the upgrade project plan and tasks
Facilitated meetings with the project team to discuss progress and issues
Executed and manages all technical upgrade tasks
Logged all technical upgrade steps
Performed data mapping for changes to legacy data to major coding changes to PeopleSoft packages.
Resolved technical issues as the Database Administrator (DBA) and with the Systems Programmers
Created and oversaw all necessary technical checklists to ensure completion of the upgrade
Reported completed tasks, issues, and risks
New York City, NY
[01/01 to 06/01]
I executed IT infrastructure evaluation and implementation of the restructuring. I also, implemented an extensive performance tuning effort of the entire PeopleSoft Financial applications suite for a major insurance company in New York.
I worked as a PeopleSoft Installation Manager during the install of PeopleSoft 8.1 financials for a major property management company in Texas. The system was installed with SQL/Server as the database. I performed the following functions:
Installed PeopleSoft-delivered software
Created and installed a PeopleSoft Demo and Sys database. And created the associated Application Server, Web Server and Process Scheduler.
Configured the Application Server Domain, Web Server and Process Scheduler
Provided backup and recovery SQL/Server database support.
Performed scalability testing.
Developed custom error logging reports.
Completed the install Verification Test
Provided environment control and security administration.
Developed integration and migration procedures to the corporate data warehouse.
I also performed an IT infrastructure readiness evaluation for the implementation of PeopleSoft 8.0 for a financial services company in Boston.
PricewaterhouseCoopers LLP – Principal Consultant
San Francisco, CA
5/99 to 1/01
I managed the installation of PeopleSoft 8.0 Human Resources and PeopleTools 8.1 for a large University in Northern California. Software was installed on zOS390 hardware. I managed the following functions:
Installed PeopleSoft-delivered software
Created and installed a PeopleSoft Demo and Sys database. Created the associated Application Server, Web Server and Process Scheduler.
Configured the Application Server Domain, Web Server and Process Scheduler.
Completed the install Verification Test
Provided environment control and security administration.
Provided backup, recovery and loading of DB2 databases.
Dallas, TX
I worked as a DB2 DBA during the install of PeopleSoft 8.0 Human Resources and PeopleSoft 8.0 Financials and PeopleTools 8.1 for a major ASP in Texas. Software was installed using OS390 hardware and DB2 database. I performed the following functions:
Review scripts and modify, if necessary, for customer standards
Monitored databases and provided database support
Provided backup, recovery and loading of DB2 databases.
Performed data mapping for changes to legacy data to major coding changes to PeopleSoft packages.
Troubleshot and performed performance tuning on all databases
Established and enforced standards
Los Angeles, CA
I installed PeopleSoft 8.0 Human Resources and PeopleTools 8.1 for a major capital management company in California. Software was installed on AIX hardware. I performed the following functions:
Installed PeopleSoft-delivered software
Created and installed a PeopleSoft Demo and Sys database. Created the associated Application Server, Web Server and Process Scheduler on AIX.
Configured the Application Server Domain, Web Server and Process Scheduler on AIX.
Completed the install Verification Test
Provided environment control and security administration on DB2 UDB.
Provided backup and recovery database support.
I worked on a full IT Infrastructure evaluation and implemented the DB2 database restructuring for a major Security company on the West Coast.
Managed the setup, installation, and rollout of 100 NT servers to 65 offices throughout the United States.
Performed data mapping for changes to legacy data to major coding changes to PeopleSoft packages.
I performed an IT Infrastructure evaluation and implemented the database restructuring for a PeopleSoft Financial and PeopleSoft Human Resources applications implementation for a large automobile rental company in the Midwest.
I performed an IT Infrastructure evaluation and implemented the restructuring for a major insurance company in California.
I also developed & maintained staffing plans, developed& maintained project plans, managed budgets, and coordinated project resources.
PeopleSoft, Inc. - Consultant
Pleasanton, CA
12/98 to 5/99
I was responsible for executing an IT infrastructure evaluation and DB2 database implementation of the restructuring. I also, implemented a massive performance tuning effort of the entire PeopleSoft Financial applications suite for the same major insurance company in New York.
I completed an IT infrastructure evaluation and SQL Server database restructuring and co-led the effort in developing and establishing the required technical infrastructure for a bank in Zurich, Switzerland.
I performed advanced performance tuning of PeopleSoft applications for a large bank in France. I led the re-development and establishment the technical infrastructure for the same bank. The platform used was Oracle on an HP9000.
I executed IT infrastructure evaluation for a PeopleSoft Financials applications implementation for a large travel company in London.
Maxfield Associates - Consultant
Sydney, Australia
10/96 to 12/98
I was an independent contractor to PeopleSoft has been performing infrastructure reviews and performance tuning of PeopleSoft applications for a large bank in Australia, several major insurance companies in Australia, the Australian Stock Exchange, a major automobile manufacturer, several governmental agencies in California and Idaho. I also did performance tuning at a major computer manufacturer in California. The databases tuned were Oracle, DB2, Microsoft SQL/Server and Informix.
I participated as the Oracle DBA in the upgrade process from PeopleSoft Human Resources (6.0), and PeopleSoft Financials (6.0), General Ledger, Budgeting, Asset