The Three-Register Read: A Portable Diagnostic for Systems That Stipulate a Target

The three-register read is a methodology for diagnosing systems that stipulate a target and operate to deliver it. A target is read in three parallel registers. The explicit-claim register is what the target publicly claims about its stipulated phenomenon. The deployed-import register is what the target must put to work for any of its claims to operate. The success-condition register is what the target has stipulated as its phenomenon by calling itself a system for delivering X. The three registers do different jobs and the geometry between them produces six diagnostic patterns and twelve named diagnostic moves. The instruments operate at two scales, single-target diagnosis of one system and field-level…