This document discusses different models for classifying human resource activities based on their strategic importance and relationship to transactions or relationships. It describes a typology that categorizes activities as having high or low strategic value and being transactional or relational in nature. Another model classifies companies into different strategic types ("clubs", "baseball teams", "academies", and "fortresses") that pursue different competitive strategies and have varying human resource practices. The document also discusses how network organizations outsource non-core functions and require employees with entrepreneurial and contracting skills.