Gantt strict mode

Gantt Strict mode aligns first tasks with project start or end dates and positions subsequent tasks close to ancestors while respecting dependencies, with options for full or minimal strict mode enforcement.

See also Gantt project creation.

If your application administrator has enabled Gantt Strict mode, the project Plan Start date determines the placement of your tasks. With Gantt Strict mode, all first tasks are required to start directly on the project Plan Start date or end directly on the project Plan End date depending on the value that you select for the project Calculate Project From field. First tasks are tasks that do not have incoming dependencies or constraints specified. All subsequent tasks are positioned as close as possible to their predecessor tasks without violating any dependencies or constraints.

By default, the as-shipped IBM® Maximo® Real Estate and Facilities applications do not use Gantt Strict mode. When you create tasks, the tasks maintain the start date that you specify. The next tasks are moved earlier only to correct dependencies, and do not need to be close to their ancestors. Your application administrator can enable Gantt Strict mode by setting GANTT_STRICT_MODE=TRUE in the TRIRIGAWEB.properties file on the IBM Maximo Real Estate and Facilities server. This setting is system-wide, so it must be consistent across all servers.

In addition, IBM Maximo Real Estate and Facilities provides a minimal Gantt Strict mode. When you create tasks, the tasks maintain the start date that you specify. All subsequent tasks are positioned as close as possible to their predecessor tasks without violating any dependencies or constraints. Your application administrator can enable minimal mode by setting GANTT_STRICT_MODE=MINIMAL in the TRIRIGAWEB.properties file on the Maximo Real Estate and Facilities server. This setting is system-wide, so it must be consistent across all servers.