Objectbase – A collection of rule-encapsulating computer objects that, in response to external events, inherently interact via message passing to drive a visual model” - such obviating the need for in-line calculating engines waiting for their calculating turn. By way of comparison, database is a systematically arranged collection of computer data, structured so that it can be automatically retrieved or manipulated with such retrieval or manipulation carried out by calculating engines that competently apply the pertinent rules, mathematical or otherwise. GPM’s visual, real-time orientation favors objectbase v database software applications.
Offsets – Analogous to PDM lead/lags. An FS Offset denotes the interval between the finish of the predecessor and start of the successor; an SS Offset denotes the interval between the start of the predecessor and start of the successor; and so forth for FF and SF relationships.
Relationship – A time-specific interconnection between two dependent GPM objects. In LDM, 7 possible types of Relationships with Offsets are: finish-to-start; embed-to-start; finish-to-embed; embed-to-embed; finish-to-benchmark; start-to-benchmark; and embed-to-benchmark. PDM allows finish-to-start; start-to-start; finish-to-finish; and start-to-finish. ADM allows only finish-to-start.
© 2009 CMAA9