GTSI employs Technology Lifecycle Management (TLM), a strategic approach that proactively addresses all stages of the technology lifecycle, from program inception to end of life. With TLM, GTSI helps agencies plan, design, acquire, implement, and manage all elements of their IT infrastructure. Flexible financing and pay-for-use plans shift the burden and risk of ownership away from the agency.

This disciplined methodology addresses business, technology, and financial drivers; user expectations; and management of each phase of the IT infrastructure lifecycle:
- Assess and Identify
- Technology Acquisition
- Integrate and Implement
- Support Services
- Technology Refresh
- Asset Disposal
By correlating an agency's technology acquisition strategy with a solid financial model agencies can preserve IT infrastructure program funding and accelerate the modernization of their IT infrastructures. In addition, agencies can align their IT expenditures to performance metrics and spread the management and costs of the IT infrastructure over the life of the assets.
GTSI, using TLM to deliver expertise in technology, project management, engineering, and business, enables government agencies to realize the full benefit of their technology assets by providing:
- Financial pay-for-use agreements that preserve capital budgets
- Engineering services and support and warranty services
- Asset management
- Image loads and integration services
- Management/deployment of complex systems
- Project management
- Management of technology refresh schedules
- Secure disposal of retired systems and data degaussing
TLM phases and deliverables
I. Assess and Identify
- Assess current environment; identify business and technology goals and appropriate infrastructure
- A structured acquisition strategy
- Financial plans aligned with budget availability
- An asset management strategy
- A project integration and implementation plan
- Ongoing support plans including health checks and maintenance
II. Technology Acquisition
- Procurement of assets and services
- Logistics planning
- Custom payment plan
III. Integrate and Implement
- System configuration and image loading
- Asset management, such as radio frequency identification (RFID)
- Design verification and quality assurance
- Onsite or remote engineering by certified experts
- Certified project management standardized processes
IV. Support Services
- Consolidated maintenance agreements and warranty packages
- Proactive incident monitoring, technical phone and onsite support, and parts replacement
- Configuration and change management, technology restoration, and software upgrades
- Proactive maintenance to mitigate outage and security risks
V. Technology Refresh
- Evaluation of infrastructure, assets, and performance
- Refresh schedule based on agency financing and technical needs
VI. Asset Disposal
- Audit trail of equipment's final destination to reduce liabilities and security leaks associated with improper disposal
- De-installation, removal, and certificates of secure disposal