Custom designs, like Composite patterns, combine Business patterns and Integration patterns to create complex, advanced e-business applications. Custom designs are solutions that have not been implemented to the extent of Composite patterns, however. Custom designs can be developed to solve one specific company's e-business problems, or perhaps several enterprises with similar problems. This purpose can prove incredibly valuable, of course. But, Custom designs do not meet the higher qualifications of a Composite pattern, and do not give as great a reassurance of reusability, because they have not been "recurrently employed to solve the problems of businesses across a wide range of industries." However, as the Custom designs detailed on the Patterns for e-business Web site are used more and more by diverse developers, vocal about the benefits and limitations of these solutions, these custom designs might eventually achieve the status of Composite patterns.