IS External Relationships Capability: This capability comprises collaborating with external suppliers and managing the relationships with other organizations to deliver high value IS resources [17], [18]. When a firm has the ability to capture external consultants’ knowledge, it is more likely for it to activate its abilities [19]. Developing this capability leads to utilizing IS in a competitive way in which competitors’ ISs will be well monitored and external opportunities will be assessed properly; thus it is an important element of SISP success [1], [6], [8]. Accordingly, the first hypothesis is presented: