Allocated Baseline
Definition
A breakdown of the configuration items (system elements under configuration management) making up a system, including how system function and performance requirements are allocated across lower level configuration items (hence the term allocated baseline). It includes all functional and interface characteristics that are allocated from the top level system or higher-level configuration items, derived requirements, interface requirements with other configuration items, design constraints, and the verification required to demonstrate the traceability and achievement of specified functional, performance, and interface characteristics.
General/Information/Narrative
The allocated baseline is a key component of the configuration management of the technical baseline. Configuration management is the application of sound program practices to establish and maintain consistency of a product's or system's attributes with its requirements and evolving technical baseline over its life. It involves interaction among government and contractor program functions such as systems engineering, hardware/software engineering, specialty engineering, logistics, contracting, and production in an Integrated Product Team environment. The program manager should use configuration management to establish and mature the technical baseline throughout the acquisition life cycle.
The performance of each configuration item in the allocated baseline is described in its preliminary design specification, as are the tests necessary to verify and validate configuration item performance. The allocated baseline is usually established and put under configuration control at each configuration item's (hardware and software) Preliminary Design Review (PDR), culminating in a system allocated baseline established at the system-level PDR.
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Defense Acquisition Guidebook: https://acc.dau.mil/adl/en-US/350719/file/49150/dag_08-05-10pdf
PowerLOG supports this activity by tracking the parts breakdown of a system using LCNs (LSAR Control Number), PLISNs (Provisioning List Item Sequence Number), and NHAs (Next Higher Assembly). The Bill of Materials (LSA-080 BOM) and Provisioning Parts Breakout (LSA-154) provide reports related to the baseline configuration in this phase of the acquisition life cycle. PowerLOG is a logistics data management system developed to support the development, integration, and review of logistic product information throughout the acquisition life cycle. PowerLOG implements the Logistics Support Analysis Record (LSAR) requirements defined in MIL-STD-1388-2B as well as Logistics Product Data (LPD) standards defined by GEIA-STD-0007. PowerLOG also supports legacy data standards such as MIL-STD-1552 (PMR). PowerLOG is available free to all Government agencies and their contractors and can be obtained by visiting: https://www.logsa.army.mil/lec/powerlog/.
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