Top management support and commitment: The support of senior management is one of the key indicators of SISP success. This support depends upon his or her perceived strategic value of information systems, his or her business acumen and his or her awareness of opportunities embedded in IS functions for business [27]. Top management support is measured by CEO involvement in IS planning, his or her perception of IS activities, and business plan (BP) and IS plan (ISP) alignment [27]. Top management commitment and support is well established in the IS literature. Simply stated, with top management commitment, support, and guidance, IS/IT capabilities can perform better in order to achieve firm’s goals e.g. SISP success [20]. Thus, we considered top management as an antecedent for SISP success. Therefore, the next hypothesis is: H7a, b: Top management support has a strong positive relationship with organizational IS capabilities.