Quote: on failure, silently ignore the request, admit failure, resign, retry, alternative action, or appeal to a higher authority [»wirfR7_2006]

Quote: a recovery block is an alternative block for a normal block; backtrack state if invoked [»randB6_1975]

Quote: separate unexpected errors and their correction from normal code [»parnDL10_1976b]

Quote: use checked exceptions when recovery is possible; use run-time exceptions for programming errors [»blocJ_2001]

Quote: recovery by restarting a device driver; most problems are rare or due to timing [»taneAS5_2006]

Quote: in NIL, an exception invokes an exception handler; this gives every statement a defined result; undefined is impossible [»stroRE5_1985]

Quote: need backward error recovery to reset a system and forward error recovery to patch up the damage [»smitJM1_1981]

Quote: forward error recovery needed if error discovered after commitment; need a data dictionary to determine effected programs [»smitJM1_1981]

Quote: Eiffel's rescue clause handles an error by restoring the class invariant, and if resumption, the routine's precondition; unlike recovery blocks [»meyeB10_1992]

Quote: failure of a routine occurs when it can't fulfill its specification; use rescue clauses for resumption or organized panic [»meyeB10_1992]

Quote: an exception occurs when a strategy for fulfilling a routine's contract fails

Quote: an exception handler defines interpreted extensions to handle variants and exceptional data [»borgA10_1986]

Quote: handle exceptional subclasses and instances by exception handling triggered by the exceptional data [»borgA10_1986]

Quote: a multi-exit statement includes labels for alternative actions and assertions for program proving [»backRJ11_1979, OK]

Quote: determine cause of an undesired event by trying several recovery actions; starting with the least expensive one [»parnDL10_1976b]

Quote: checked exceptions should include methods that describe the context and cause of the error; assist with recovery [»blocJ_2001]

Quote: use checked exceptions for multiple, necessary exceptions that allow recovery [»blocJ_2001]

Quote: if a fictitious block for each declaration then exceptions can finalize the object before reraising the exception [»schwRL3_1981]

Quote: solved problem of occasional process failure in Unix by repeated retries at increasing lengths of time [»doloTA7_1978]

Quote: Numerical Turing attaches exception handling to operators; modifies its definition; can use names like 'overflow' [»hullTE9_1988]

Quote: in Numerical Turing attach an exception handler by appending '@handlerId' to an operator [»hullTE9_1988]

Quote: an exception handler has the same scope as the operator it is attached to; acts like textual substitution, e.g., 'return' [»hullTE9_1988]