Safety Critical Element Management Manual The SCE Management process summarised in Figure 2 is divided into five sections, each of which is outlined below and described in more detail later in the manual. EP 2009-9009 Restricted 8 Overview of the SCE Management process Figure 2: SCE Management process - overview 1 Identify SCEs and performance standards 2 Align maintenance strategies 3 Execute assurance activities 4 Manage deviations 5 Analyse and improve 1. Identify SCEs and performance standards Major Hazards are identified during the HEMP and developed into the bow-tie models to show the escalation, consequences and barriers which are required to manage the hazards. All resultant SCEs have their specifications defined to establish integrity during the project and their Operate phase performance standards defined for project handover and subsequent safeguarding of integrity. The end result is a package of approved SCEs identified in the Asset Register with Operate phase performance standards.