The three most important techniques that are used in SSADM are:
; Logical data modeling
: This is theThe process of identifying, modeling and documenting the data requirements of the system being designed. The dataresult areis a data separatedmodel intocontaining entities (things about which a business needs to record information), attributes (facts about the entities) and relationships (the associations between the entities).
; Data Flow Modeling
: This is theThe process of identifying, modeling and documenting how data moves around an information system. Data Flow Modeling examines processes (activities that transform data from one form to another), data stores (the holding areas for data), external entities (what sends data into a system or receives data from a system), and data flows (routes by which data can flow).
; Entity Event Modeling
: This is aA two-stranded process: Entity Behavior Modeling, identifying, modeling and documenting the events that affect each entity and the sequence (or life history) in which these events occur, and Event Modeling, in which the process for implementing aneach event so as to coordinate entity life histories is designed.
