SAP AG, the largest maker of business-management software, named Robert Enslin and Bernd Leukert to the board as Chief Technology Officer Vishal Sikka stepped down for personal reasons.

Sikka, a protégé of Chairman Hasso Plattner, had been put in charge of overseeing innovation throughout SAP only a year ago as the company pushed further into software delivered as an Internet service, a technology known as cloud computing.

SAP is overhauling its management as Bill McDermott prepares take over as sole chief executive officer later this month. Adding Enslin and Leukert to the board will help advance the transition to cloud-computing services, SAP said in a statement. The German company, like Oracle Corp., has been shifting to online programs in the face of stiffer competition from Salesforce.com Inc. and other smaller rivals.

Enslin, who joined in 1992, will continue to lead global customer operations, while Leukert, who was hired in 1994, will assume responsibility for the global development organization, Walldorf, Germany-based SAP said in the statement.

Last month SAP reported first-quarter sales and earnings that missed analysts’ estimates as increased sales from cloud computing were muted by a slowdown for older products and a strong euro.

SAP also added Helen Arnold and Stefan Ries to its global managing board.

Arnold, an 18-year veteran of SAP, will assume the role of chief information officer, and lead cloud operations and the HANA Enterprise Cloud. Ries had recently rejoined SAP to lead global human resources.