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SMART – Schedule Management and Relationship Tool

The Schedule Management and Relationship Tool (SMART) combines analogy-based and parametric crosscheck methods to estimate development schedule for unmanned spacecraft projects from Authority To Proceed (ATP) to Launch Readiness Date (LRD).  SMART incorporates existing Schedule Estimating Relationships (SERs) developed for NASA as a convenient cross-check.  The SERs within SMART are based on more than 100 historical unmanned spacecraft projects. Based on spacecraft characteristics, the tool provides a statistical illustration of how a project’s schedule estimate compares/contrasts to other analogous projects.  SMART estimates from ATP start to SRR, SRR to PDR, PDR to CDR, CDR to SIR and SIR to Launch development durations.

Figure 1 SMART Analogy-Based Estimation Process

SMART provides many benefits to users including the ability to independently compare analogous schedule data to a project to validate development schedule duration lengths.  High level comparisons across projects also enable further analysis.  Also included in the available SMART outputs are comparisons of the various SER results which can provide a convenient cross-check.  

Figure 2 SMART outputs include comparison of SER results

SMART is being continually updated by HQ OCFO SID to generate more reliable SERs.  The tool is available for download from ONCE for NASA Civil Servants and NASA Contractors.