Abstract: An apparatus and methods are disclosed for requirements decomposition and management. The apparatus includes a collection module, an organization module, and a graph module. These modules carry out the steps of collecting a project task description, the project task description comprising one or more properties, generating a directed acyclic hierarchy of one or more project tasks associated with the project task description, and generating a directed acyclic hierarchical graph view of the project, wherein the directed acyclic hierarchical graph view of the project comprises one or more nodes representing the one or more project tasks, and wherein the one or more nodes are arranged to graphically illustrate a directed acyclic hierarchical relationship between the one or more project tasks.

Abstract: An apparatus and methods are disclosed for requirements decomposition and management. The apparatus includes a collection module, an organization module, and a graph module. These modules carry out the steps of collecting a project task description, the project task description comprising one or more properties, generating a directed acyclic hierarchy of one or more project tasks associated with the project task description, and generating a directed acyclic hierarchical graph view of the project, wherein the directed acyclic hierarchical graph view of the project comprises one or more nodes representing the one or more project tasks, and wherein the one or more nodes are arranged to graphically illustrate a directed acyclic hierarchical relationship between the one or more project tasks.

Abstract: A vital product data system memory stores warranty information in vital product data relating to replaceable unit(s) of a data handling system. The data comprises a date of first use, and a device state field comprising an identifier representing one of the states: “new”, “recertified”, and, “in-use”. Management control, in response to newly sensing a replaceable unit, detects its device state field, and if the detected field is set to the “new” state, resets it to the “in-use” state, sets the date of first use to a current date, and stores the state field and date of first use for the replaceable unit in the memory; and if the detected field is set to the “recertified” state, resets the field to the “in-use” state, and sets the replaceable unit date of first use to the date of first use stored in the memory for the previous replaceable unit at the same location.

Abstract: A vital product data system memory stores warranty information in vital product data relating to replaceable unit(s) of a data handling system. The data comprises a date of first use, and a device state field comprising an identifier representing one of the states: “new”, “recertified”, and, “in-use”. Management control, in response to newly sensing a replaceable unit, detects its device state field, and if the detected field is set to the “new” state, resets it to the “in-use” state, sets the date of first use to a current date, and stores the state field and date of first use for the replaceable unit in the memory; and if the detected field is set to the “recertified” state, resets the field to the “in-use” state, and sets the replaceable unit date of first use to the date of first use stored in the memory for the previous replaceable unit at the same location.